119 results about "Carnauba wax" patented technology

The invention relates to the technical field of cosmetics, and particularly discloses a sunscreen synergistic composition and application thereof, and the sunscreen synergistic composition comprises the following components: sugarcane extract, cyperus esculentus root oil, and Brazil palm wax (and) rice chaff wax. The sunscreen synergistic effect of the sunscreen synergistic composition is utilized, a chemical sunscreen agent with potential safety hazards can be partially replaced, the potential safety hazard coefficient is reduced due to the fact that all the sunscreen components are safe or the needed adding amount is low, and a sunscreen product which is high in sunscreen coefficient, mild in formula, low in potential safety hazards and even environmentally friendly is obtained.

The invention discloses a corrugated carton with waterproof and antibacterial properties, and belongs to the technical field of logistics packaging materials. The corrugated carton is formed by bonding surface paper, inner paper and corrugated paper. The surface paper, the inner paper and the corrugated paper are coated with a layer of composite waterproof antibacterial emulsion before being bonded, and a layer of waterproof antibacterial film is obtained; the composite waterproof antibacterial emulsion is prepared from the following components in parts by weight: 40 to 50 parts of waterborne polyurethane, 30 to 35 parts of acrylic resin emulsion, 20 to 25 parts of modified palm wax emulsion, 8 to 10 parts of composite waterproof antibacterial material dispersion liquid, 4 to 6 parts of organic silicon waterproof agent, 3 to 5 parts of nano zinc oxide, 2 to 4 parts of propylene glycol methyl ether acetate, 0.5 to 2 parts of hydroxyethyl cellulose and 0.1 to 0.5 part of defoaming agent. The corrugated carton prepared by the invention has good adhesion, waterproofness and antibacterial property.

The invention discloses a straw fiber-based antibacterial mulching film with temperature and humidity response performance and a preparation method, and belongs to the technical field of agricultural mulching films, the straw fiber-based antibacterial mulching film with temperature and humidity response performance comprises a bottom film layer, a slow release layer and a barrier layer in sequence from bottom to top; the slow-release layer is obtained by coating the base film layer with a mixed solution of acetic acid, a bactericide, gelatin and a plasticizer; the barrier layer is obtained by coating palm wax emulsion on the surface of the slow release layer. According to the invention, palm wax, a bactericide (carbendazim), gelatin and a wheat straw fiber-based mulching film are combined to construct the wheat straw fiber-based temperature and humidity response type bacteriostatic mulching film. The straw fiber-based antibacterial mulching film can respond according to the change of environmental temperature and humidity to realize accurate release of pesticides, so that diseases are accurately regulated and controlled.

The invention discloses a method for quantitatively testing the content of organic carbon and disseminated particle size in gold ore, and belongs to the technical field of gold ore detection. The method comprises the steps of sample preparation and quantitative testing, wherein palm wax serves as a cementing agent, barite serves as a standard sample, and a to-be-tested sample is prepared through melting, mixing, consolidation, polishing and carbon spraying; the quantitative test is based on an automatic process mineralogy test system, palm wax backgrounds are removed through backgrounds deduction, an energy spectrum library is established to recognize organic carbon and barite particles, the area ratio of the organic carbon and the barite particles is measured, the mass ratio is converted by combining the density ratio, the organic carbon content of raw ore is inversely calculated, and meanwhile, the particle size distribution of the organic carbon is counted. The method solves the problem that the content and granularity of organic carbon cannot be accurately quantified at the same time in the prior art, has the advantages of high test precision, high efficiency, comprehensive parameters and simplicity and convenience in operation, and can provide key data for optimization of a gold ore cyanidation leaching process.

The invention relates to the technical field of polyester degradable plastics, and discloses a biodegradable shrink film as well as a preparation method and application thereof. The preparation method of the biodegradable shrink film comprises the following steps: reacting (R)-3-hydroxybutyric acid with 1, 4-dibromobutane to obtain a dihydric alcohol monomer; the preparation method comprises the following steps: copolymerizing a dihydric alcohol monomer and L-lactide to obtain modified polylactic acid; carrying out copolymerization on the geraniol-based compound and L-lactide to obtain a bio-based plasticizer; modifying the bio-based plasticizer with allyl trimethyl ammonium chloride to obtain a modified bio-based plasticizer; the biodegradable shrink film is prepared by taking modified polylactic acid, poly (butylene adipate-co-terephthalate), a modified bio-based plasticizer, a functional filler and palm wax as raw materials. The biodegradable shrink film has the advantages of flexibility, shrinkage performance, lasting antibacterial performance and good barrier performance, and can be used in food packaging materials.

The invention relates to the technical field of conductive coatings, and discloses a weather-resistant bio-based conductive coating based on water-based palm wax / shellac and a preparation method thereof, the weather-resistant bio-based conductive coating comprises the following raw materials by mass: 20-30 parts of a natural palm wax nano emulsion, 70-80 parts of a shellac ethanol solution, 1-3 parts of Tween 80, and 30-80 parts of a silver coated copper powder / carbon nanofiber composite material. According to the scheme, the super-hydrophobic barrier is constructed by introducing the water-based palm wax, the moisture absorption rate is reduced, electrochemical corrosion and stress stripping are effectively reduced, and the service life of a base material is prolonged. Meanwhile, lac is added in the scheme, a three-dimensional network structure is formed through crosslinking of the water-based palm wax emulsion and biomass hydroxyl, and the flexibility and moisture resistance of the coating are effectively improved. Specifically, according to the scheme, the water-based palm wax and the shellac are combined and used, so that the weather resistance of the coating is effectively improved, for example, the moisture absorption rate of the coating is reduced to 12% (ASTMD570 standard), and the flexibility of the coating is improved (the elongation at break gt; 50%), the moisture resistance is improved by 3 times (the water vapor permeability lt; 10 g / m < 2 >. Day).

The invention belongs to the technical field of preparation of nail polish compositions, particularly relates to a bio-based perfume nail polish composition and a preparation method thereof, and provides the following scheme aiming at the problems of high emission of volatile organic compounds (VOC), serious environmental pollution, potential health risks and the like due to the fact that existing nail polish usually uses a petroleum-based solvent and synthetic resin. The invention relates to a sugarcane-fermented ethanol beverage which comprises the following raw materials in parts by weight: 30-60 parts of sugarcane-fermented ethanol, according to the invention, sugarcane fermented ethanol, acetyl tributyl citrate, diethyl lauroyl glutamate, zein, konjac glucomannan, abietic acid methacrylate, neroli oil, cananga odorata oil, sodium alginate, chitosan, mineral mica, alkannin, panthenol, organic bentonite, carnauba wax nanoparticles and a photoinitiator are used; the pollution to the environment and the dependence on non-renewable resources are effectively reduced, and the potential harm to human health is reduced.

The present invention discloses an aqueous release coating, which comprises the following components by mass percentage: paraffin emulsion 30-40%, palm wax emulsion 30-40%, polyethylene wax emulsion 15-30%, release force regulator 1-3%, surfactant 1-3%, and aqueous polymer resin 1-3%. The present invention also discloses a preparation method of the aqueous release coating and its application in thermal transfer labels. The aqueous release coating disclosed by the present invention has no ink residue on the surface of the paper after release, and the aqueous release coating does not add organic solvents, has no VOC emissions, is environmentally friendly, has low cost, and the raw materials are friendly to the human body, and can be applied to the fields where human contact is possible.

The invention relates to the technical field of candle coloring processes, in particular to a candle coloring method based on natural water-soluble vegetable dye, which comprises the following steps: S1, plant pigment extraction, S2, wax base pretreatment, S3, gradient coloring, S4, color fixation treatment and S5, storage in dark. Natural plants are adopted as plant dye to replace traditional petroleum-based chemical dye, decomposition products after combustion can be naturally degraded, the environment-friendly and safe effects are achieved, through innovative emulsification system construction and a gradient coloring technology, lecithin is used as a dispersing agent, three-section type temperature gradient stirring is combined, pigment evenly permeates into a wax base, and the color fastness is improved. The palm wax is added to enhance the adhesive force, and the alum solution is used for mordanting, so that the stability of the plant pigment and the antioxidant protection of the vitamin E are remarkably improved, and the pigment attenuation caused by ultraviolet rays is effectively delayed; therefore, a safe, non-toxic and color-lasting coloring solution is provided for the candle industry.

The invention relates to the field of coatings, and discloses a method for constructing a fluoride-free wear-resistant transparent super-hydrophobic coating, which comprises the following steps: (1) carrying out surface roughening treatment on wood; (2) wood is immersed in the oil-phase impregnation liquid at 75-85 DEG C, and wood with an uncured hydrophobic layer on the surface is obtained after the wood is taken out; the oil phase impregnation liquid comprises carnauba wax, tung oil and ethyl acetate; (3) the wood is immersed in hydrophobic nano-silica dispersion liquid with the temperature 50-60 DEG C lower than that of the oil-phase impregnation liquid, an uncured hydrophobic layer is cooled and cured into a cured hydrophobic layer with a micron-sized rough surface, and hydrophobic nano-silica is attached to the surface of the cured hydrophobic layer; and taking out, ventilating and drying, enabling the tung oil to permeate into the wood and generate crosslinking, and finally constructing and forming the fluoride-free wear-resistant transparent super-hydrophobic coating on the surface of the wood. According to the method, the super-hydrophobic coating with the micro-nano structure can be constructed on the surface of the wood, and the super-hydrophobic coating has high wear resistance and high transparency.

The application provides a wax emulsion for cotton fiber finishing and a preparation method thereof, and relates to the technical field of cotton fiber finishing. The wax emulsion for cotton fiber finishing comprises 36-38 parts of paraffin wax and Brazil palm wax, 4-6 parts of an emulsifier, 0.01-0.2 parts of an acid and 56-60 parts of water. The mass ratio of the paraffin wax and the Brazil palm wax is (8-12):1. The mass ratio of the total amount of the paraffin wax and the Brazil palm wax to the emulsifier is (6-9):1. The emulsifier comprises non-ionic emulsifiers and cationic emulsifiers in a mass ratio of (1-5):1. The non-ionic emulsifiers are fatty alcohol polyoxyethylene ethers. The wax emulsion has a small amount of emulsifier, a particle size of less than 100 nm, and does not separate or precipitate at room temperature. The wax emulsion can be effectively combined with cotton fibers, can be used for yarn softening finishing, can improve the wear resistance and softness of cotton fibers, and can ensure a high strength retention of cotton fibers.

The present invention provides an aqueous anti-corrosion coating and a preparation method thereof, belonging to the technical field of coating preparation, and comprising the following steps: S1. Prepare modified carnauba wax micro needles: Add molten carnauba wax into a glass fiber dispersion liquid, stir evenly to obtain a mixed solution; Pour the above-mentioned mixed solution into a mold, cool and solidify, and obtain modified carnauba wax micro needles after drying; S2. Take an aqueous acrylic resin and an aqueous epoxy resin, add a solvent and stir at a low speed, add a wetting agent and an anti-foaming agent and stir at a high speed; Add modified TiO2 nanoparticles, a siloxanyl acrylate, modified SiO2 nanoparticles and modified carnauba wax micro needles, mix and disperse evenly to obtain an aqueous anti-corrosion coating. The technical solution provided by the present invention realizes the purpose of simultaneously improving the matte performance and waterproof performance of the coating, and achieves the effect of maintaining anti-corrosion.

The invention relates to the technical field of oil paints, in particular to an oil paint and a preparation method thereof. The oil paint is prepared from the following raw materials in parts by weight: 60-80 parts of oil, 40-50 parts of toner, 20-30 parts of filler, 20-30 parts of palm wax, 5-7 parts of stearic acid, 5-7 parts of dammar resin, 4-6 parts of polyamide resin and 2-4 parts of lubricating oil. According to the invention, after the ox horn powder is subjected to enzymolysis treatment, residual animal fat in the ox horn powder is hydrolyzed into glycerol and free fatty acid by lipase, so that the grease content of the ox horn powder is reduced, meanwhile, the compact structure of keratin can be destroyed, the porosity and specific surface area of the ox horn powder are increased, and the binding capacity of the ox horn powder with other components is improved; and toner particles can be fixed through Van der Waals' force, and dissociation and migration of the toner in a pigment coating are reduced, so that the toner is firmly anchored in a filler network and is not easy to fall off even if the toner is rubbed by external force, and the color fastness of the oil paint is effectively improved.

To provide a non-fire-spreading grease composition with excellent non-flammability and water resistance, and also to provide a bearing or gear containing the non-fire-spreading grease composition.SOLUTION: The non-fire-spreading grease composition according to the present invention comprises the following materials (a) to (d): (a) as a thickening agent, a diurea compound represented by the following formula (1): R1-NHCONH-R2-NHCONH-R3 (1) (wherein R2 represents an aromatic hydrocarbon group having 6 to 15 carbon atoms, and R1 and R3 may be the same or different and represent an aliphatic hydrocarbon group having 8 to 20 carbon atoms or an aromatic hydrocarbon group having 6 to 15 carbon atoms, the proportion of aliphatic hydrocarbon groups in the total of R1 and R3 is 50 to 100 mol%); (b) a base oil having a kinematic viscosity of 300 mm2 / s or more at 40°C; (c) at least one selected from the group consisting of rice wax, carnauba wax, and montanic acid derivatives; and (d) at least one selected from the group consisting of organic sulfonic acid metal salts, sodium sebacate, and glycerin.SELECTED DRAWING: None

This invention discloses a method for preparing high-performance wood wax oil, belonging to the field of coating technology. The raw materials used in this wood wax oil are soybean oleic acid, maleic anhydride, grafting catalyst, glycerol, phthalic anhydride, esterification catalyst, vanadium drier, zirconium drier, carnauba wax, and beeswax. Compared to wood wax oils based on tung oil and linseed oil, the wood wax oil of this invention uses soybean oleic acid as the main material, utilizing maleic anhydride to perform graft copolymerization at the α-position of the carbon-carbon double bond in soybean oleic acid, thereby increasing the iodine value of the resin system. Increased iodine value leads to increased crosslinking points, thus ensuring drying properties and improving the hardness, drying performance, and yellowing resistance of the wood wax oil; weather resistance is significantly improved, and drying time is accelerated; no heavy metal driers such as cobalt and manganese are added, making it environmentally friendly; the preparation process of the wood wax oil of this invention is simple and easy to operate, with low material costs.

COSMETIC SUNSCREEN COMPOSITION AND USE OF THE COSMETIC SUNSCREEN COMPOSITION The present invention relates to a cosmetic sunscreen composition comprising (a) at least one fatty compound, (b) Copernicia cerifera (carnauba) wax, (c) at least one filler, (d) at least one surfactant and (e) a UV filter system. The present invention also relates to a process for manufacturing the cosmetic sunscreen composition and its use. Figure for abstract: none

According to various embodiments, a glove is provided with improved hydration characteristics and low dermatitis potential. The glove comprises a substrate and a polymer system that coats a surface of the substrate. The polymer system comprises: a polyol, a botanical extract, an emollient agent, a silicone copolymer dispersion, a lubricant, and a surfactant. The substrate may be free of sulphur and accelerators. An example formulation of the polymer system may comprise glycerol, Aloe vera, a carnauba wax dispersion, dimethicone, a polyalkylene glycol (PAG), and polyoxyethylene (20) sorbitan monooleate. The polymer system may be applied to the\surface of the substrate by dipping the surface into a water-based dispersion of the polymer system, or spraying the water-based dispersion onto the interior surface. The polymer system may be blended into water at a total solids content of 0.8% to 1.2% w / w to form the water-based dispersion.

The present invention deals with a formulation comprising at least one ethoxylated C13-C19 sorbitan monoester, saturated or not; and carnauba wax. Furthermore, the present invention pertains to a coating dilution comprising said formulation and the use of the formulation or of the coating dilution as a cold-end coating on a glass-container.

The invention discloses chewing gum for promoting rapid recovery of cognitive fatigue as well as a preparation method and application of the chewing gum. Comprising the following raw material components: linalyl acetate, gum base, D-mannitol, erythritol, purified water, caprylic / capric triglyceride, soya bean lecithin, Arabic gum, carnauba wax and potassium sorbate. The chewing gum is used after work fatigue or in a cognitive fatigue state at a high mental load post, and the specific process is as follows: a user puts one linalyl acetate chewing gum into the mouth in a room at the temperature of 20-30 DEG C, slowly chews the linalyl acetate chewing gum at the rhythm of 20-40 times per minute, discards the linalyl acetate chewing gum after chewing the linalyl acetate chewing gum for 4-6 minutes, and closes the eyes to have a rest for 15-20 minutes. The chewing gum disclosed by the invention can effectively promote rapid recovery of cognitive fatigue of high-mental-load working people and promote rapid recovery of fatigue of important post personnel such as unmanned aerial vehicle operation and radar monitoring, and the error rate and the accident rate are reduced.

The invention relates to the technical field of cellulose aerogel, in particular to hydrophobic cellulose aerogel and a preparation method and application thereof.The preparation method comprises the steps that agricultural waste rice husks are screened and pretreated, and preparation raw materials are obtained; extracting nano cellulose in the preparation raw materials; preparing cardanol epoxy resin and palm wax microemulsion; carrying out gel forming on the basis of nanocellulose and cardanol epoxy resin to prepare hydrogel; the hydrogel is subjected to vacuum freeze drying, and nano cellulose slurry is prepared; carrying out 3D printing by adopting the nano cellulose slurry to prepare hydrophobic cellulose aerogel; the hydrophobic cellulose aerogel is prepared by taking agricultural waste rice husks as a raw material, so that waste utilization can be realized, and the production cost is reduced.

The present invention relates to the technical fields of superhydrophobic functional paper and food packaging, and particularly relates to a preparation method and application of an antibacterial and fresh-keeping superhydrophobic paper. The method includes: (1) preparing a tea polyphenol solution, immersing a paper substrate therein for a certain time and then taking it out for cleaning; (2) preparing an FeCl3 solution and mixing it with the tea polyphenol solution in step (1); continuously immersing the paper substrate cleaned in step (1) in the mixed solution for a certain time and then taking it out for cleaning; (3) preparing a silver ammonia aqueous solution; immersing the paper substrate cleaned in step (2) in the silver ammonia aqueous solution again for a certain time and then taking it out for washing with water; (4) repeating the above steps 4-8 times, and then drying the paper substrate after repeated immersion and cleaning; (5) dissolving palm wax in chloroform, immersing the paper substrate dried in step (4) in the palm wax solution for a certain time and then taking it out for drying to obtain the superhydrophobic antibacterial paper. The antibacterial and fresh-keeping superhydrophobic paper solves the problems of low surface sterilization efficiency, slow speed, and poor broad-spectrum bactericidal property of the existing single-performance surface.

The application discloses a bromofuranone C-30 slow-release agent and a preparation method and application thereof. The bromofuranone C-30 slow-release agent is prepared by dissolving bromofuranone in ethyl acetate, adding silica to prepare fine particles, and then coating the fine particles with palm wax to obtain the bromofuranone C-30 slow-release agent. The bromofuranone C-30 slow-release agent effectively improves the stability of bromofuranone C-30, avoids the absorption of bromofuranone C-30 in the stomach of animals, prolongs the action time of bromofuranone C-30 in the intestinal tract, and can be applied to livestock, poultry and aquatic animal feed. The preparation method of the bromofuranone C-30 slow-release agent is simple in process and low in production cost.

The present invention relates to a composite foam hydrogel organic sewage purifier and a preparation method thereof. The technical solution is as follows: urea and carbon black are added to deionized water, stirred, dried, heated under a nitrogen atmosphere, washed, and filtered to obtain a carbon black composite g-C3N4 photocatalytic agent. Polyvinyl alcohol is added to deionized water, and then agar powder and carbon black composite g-C3N4 are added and stirred; then sodium dodecyl sulfate, dodecanol, and gum arabic are added and stirred continuously to obtain a composite foam hydrogel slurry, which is cast and freeze-dried to obtain a composite foam hydrogel. Carnauba wax and beeswax are added to anhydrous ethanol, stirred, and ultrasonically treated to obtain a hydrophobic mixed wax suspension. The hydrophobic mixed wax suspension is sprayed on a large plane on the surface of the composite foam, and freeze-dried to obtain a composite foam hydrogel organic sewage purifier. The process of the present invention is simple and low in cost; the product thus prepared not only has a long service life, but also has high water evaporation efficiency and organic matter degradation efficiency.

The invention relates to the technical field of composite functional materials, in particular to a spinel type composite photo-thermal super-hydrophobic coating, a preparation method of the spinel type composite photo-thermal super-hydrophobic coating and application of the spinel type composite photo-thermal super-hydrophobic coating to ice prevention and deicing. The preparation method comprises the following steps: firstly, preparing a spinel type CuFeMnO4 material with a micro-nano structure from copper salt, ferric salt and manganese salt by virtue of a coprecipitation method and high-temperature heat treatment, and then carrying out surface hydrophobic modification on the spinel type CuFeMnO4 material by virtue of palm wax. The excellent photothermal conversion performance of the spinel type CuFeMnO4 material is combined with the low surface energy characteristic of the palm wax, so that the synergistic effect of efficient photothermal conversion and super-hydrophobic performance is realized; a coating layer formed by the prepared spinel type composite photo-thermal super-hydrophobic coating has excellent super-hydrophobicity, durability and environmental adaptability and can have good anti-icing and deicing effects. In addition, the preparation method has the advantages of being simple in process, economical in cost and environmentally friendly.

The invention provides a preparation method of germinated brown rice. The preparation method mainly comprises the following steps: screening brown rice, soaking the brown rice in a sodium hypochlorite solution, soaking the brown rice in a hydrophobic emulsion for airing, soaking the brown rice in a water-in-oil emulsion, taking out the brown rice, cleaning the brown rice with deionized water, culturing and germinating in a constant-temperature and constant-humidity box, drying, cooling to room temperature, and packaging in vacuum. Screened brown rice is soaked in a sodium hypochlorite solution, the brown rice is taken out, washed and then soaked in a hydrophobic emulsion to be aired, a hydrophobic porous film is formed on the surface of the brown rice, then the brown rice is soaked in a water-in-oil emulsion, an oil phase is prepared from cinnamyl aldehyde / L-glutamine cross-linked substance, carnauba wax and polyglycerol fatty acid ester, and the oil phase is prepared from a water-in-oil phase; the water phase is prepared from a staphylococcus xylosus seed solution, a Kluyveromyces marxianus seed solution and a papain solution, and the water-in-oil emulsion permeates into pores of the hydrophobic porous film and acts on the brown rice through pore channel diffusion, so that the cortex barrier of the brown rice is effectively degraded, the moisture and oxygen permeability is improved, and the germination rate and the uniformity are improved.

The present application relates to the technical field of pharmaceutical preparations, and specifically discloses a kind of azilsartan tablet and its preparation method. A kind of azilsartan tablet, the raw material of the tablet includes the following components in parts by weight: 35-45 parts of azilsartan, 72-76 parts of silicified microcrystalline cellulose, 10-12 parts of low-substituted hydroxypropyl cellulose, 3-7 parts of talc, 0.39-1.04 parts of carnauba wax; The particle size D90 of the azilsartan is 50-80um. In this application, azilsartan, silicified microcrystalline cellulose, low-substituted hydroxypropyl cellulose, and talc having a particle size D90 of 50-80um are first used to press into tablets, and then carnauba wax is used to form a coating on the tablet surface, which not only improves the dissolution rate and dissolution uniformity of the tablet, but also greatly improves the stability of the tablet.

The invention discloses a coating, wax oil-feeling decorative paper applying the coating and a preparation process, and relates to the technical field of decorative paper, the coating comprises PEO-b-PBA block copolymer emulsion, hydrophobic modified cellulose nanocrystals, acrylate-siloxane hybrid emulsion, natural palm wax nano dispersion liquid, a flatting agent, a pH buffer agent, a defoaming agent and other components. By regulating and controlling the molecular weight and the mass ratio of PEO-b-PBA, a surface hydrophobic aggregation domain is formed, and the coating is endowed with waxy touch; the acrylate-siloxane hybrid emulsion and the natural palm wax have a synergistic effect to form a gradient low-surface-energy layer, so that the antifouling, anti-fingerprint and waterproof properties are enhanced; the hydrophobic modified cellulose nanocrystals provide microstructure support, and the durability of the coating is improved.

The present invention discloses a single-stage gasholder rubber sealing film production process, which belongs to the technical field of rubber sealing films and comprises the following steps: first, adding tartaric acid modified graphene oxide and γ-mercaptopropyltrimethoxysilane to a polytetrafluoroethylene sealed can, loading the mixture into a reactor, and maintaining the mixture at 180°C for 6 hours to obtain modified graphene oxide; second, plasticizing acrylonitrile-butadiene rubber and fluororubber respectively, then uniformly mixing the two plasticized rubbers, sequentially adding modified silica, activated magnesium oxide, calcium hydroxide, modified graphene oxide, and carnauba wax, and finally adding a vulcanizing agent and an accelerator, thinning the mixture 10 times, and then forming a triangular package and removing the film; one-stage vulcanization is carried out on a common hydraulic flat vulcanizing press to obtain a single-stage gasholder rubber sealing film. In the present invention, the use of rubber as a matrix rubber material can reduce costs, combine the use of modified silica and modified graphene, and also do not reduce product performance.

The invention discloses a fluororubber composition. The invention discloses a preparation method of the fluororubber composition, which comprises the following steps: mixing and stirring hollow activated graphene, vinyl-terminated polydimethylsiloxane, alpha, omega-dihydroxy polydimethylsiloxane, an addition reaction catalyst and a plasticizer, and then adding fluororubber for plastication to obtain the fluororubber compound; the preparation method comprises the following steps: fully stirring vinyl-terminated polydimethylsiloxane, expanded graphite particles, alumina powder, a cross-linking agent and an addition reaction inhibitor to obtain an expanded graphite-alumina compound; mixing the fluororubber compound, the expanded graphite-aluminum oxide compound, calcium hydroxide, active magnesium oxide, palm wax, hexafluorobisphenol A and benzyltriphenyl phosphorus chloride, carrying out thin-passing blanking, carrying out compression molding, standing, vulcanizing at 150-170 DEG C for 5-12 minutes, and cooling to room temperature to obtain the fluororubber composition.

The invention relates to completely degradable-hydrophobic cellulose foam as well as a preparation method and application thereof. The tannic acid plays a key role in the preparation process of the modified cellulose foam, so that not only can a cellulose skeleton be strengthened through the cross-linking effect of active phenolic hydroxyl of the tannic acid and hydroxyl on the surface of cellulose, but also the binding force between the cellulose and a water repellent agent (such as rice bran wax, carnauba wax, beewax or sunflower wax) can be enhanced; therefore, the defect that low-density cellulose foam is low in strength is remarkably overcome, and due to the cross-linking effect, the foam material has higher mechanical strength and structural stability while keeping the light characteristic.